The 450S is mainly used for SSB and CW While the FT817ND is more often used for digital communications as bpsk31 ans SSTV. The Th78E and TM710 are used in FM along the roads.
We mainly use these frequencies:
145.500 - 145.550 - 432.500
1.845 - 3.760 - 7060 - 14.125 - 14.260 - 21.260 - 28.560 - 50.130
Cw Bpsk31 Rtty and SSTV
According to bands plan